content: /*
   * 支付宝开放平台API
   * 支付宝开放平台v3协议文档
   *
   * The version of the OpenAPI document: 2025-08-26
   * 
   *
   * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
   * https://openapi-generator.tech
   * Do not edit the class manually.
   */
  
  
  package com.alipay.v3.model;
  
  import java.util.Objects;
  import java.util.Arrays;
  import com.alipay.v3.model.ItemExtInfo;
  import com.alipay.v3.model.ItemPropertyInfo;
  import com.alipay.v3.model.MaterialCreateInfo;
  import com.alipay.v3.model.SkuCreateInfo;
  import com.google.gson.TypeAdapter;
  import com.google.gson.annotations.JsonAdapter;
  import com.google.gson.annotations.SerializedName;
  import com.google.gson.stream.JsonReader;
  import com.google.gson.stream.JsonWriter;
  import io.swagger.annotations.ApiModel;
  import io.swagger.annotations.ApiModelProperty;
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.List;
  
  import com.google.gson.Gson;
  import com.google.gson.GsonBuilder;
  import com.google.gson.JsonArray;
  import com.google.gson.JsonDeserializationContext;
  import com.google.gson.JsonDeserializer;
  import com.google.gson.JsonElement;
  import com.google.gson.JsonObject;
  import com.google.gson.JsonParseException;
  import com.google.gson.TypeAdapterFactory;
  import com.google.gson.reflect.TypeToken;
  
  import java.lang.reflect.Type;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.Map;
  import java.util.Map.Entry;
  import java.util.Set;
  
  import com.alipay.v3.JSON;
  
  /**
   * AntMerchantExpandItemOpenCreateModel
   */
  @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
  public class AntMerchantExpandItemOpenCreateModel {
    public static final String SERIALIZED_NAME_DESCRIPTION = "description";
    @SerializedName(SERIALIZED_NAME_DESCRIPTION)
    private String description;
  
    public static final String SERIALIZED_NAME_EXT_INFO = "ext_info";
    @SerializedName(SERIALIZED_NAME_EXT_INFO)
    private List<ItemExtInfo> extInfo = null;
  
    public static final String SERIALIZED_NAME_MATERIAL_LIST = "material_list";
    @SerializedName(SERIALIZED_NAME_MATERIAL_LIST)
    private List<MaterialCreateInfo> materialList = null;
  
    public static final String SERIALIZED_NAME_NAME = "name";
    @SerializedName(SERIALIZED_NAME_NAME)
    private String name;
  
    public static final String SERIALIZED_NAME_PROPERTY_LIST = "property_list";
    @SerializedName(SERIALIZED_NAME_PROPERTY_LIST)
    private List<ItemPropertyInfo> propertyList = null;
  
    public static final String SERIALIZED_NAME_SCENE = "scene";
    @SerializedName(SERIALIZED_NAME_SCENE)
    private String scene;
  
    public static final String SERIALIZED_NAME_SKU_LIST = "sku_list";
    @SerializedName(SERIALIZED_NAME_SKU_LIST)
    private List<SkuCreateInfo> skuList = null;
  
    public static final String SERIALIZED_NAME_STANDARD_CATEGORY_ID = "standard_category_id";
    @SerializedName(SERIALIZED_NAME_STANDARD_CATEGORY_ID)
    private String standardCategoryId;
  
    public static final String SERIALIZED_NAME_TARGET_ID = "target_id";
    @SerializedName(SERIALIZED_NAME_TARGET_ID)
    private String targetId;
  
    public static final String SERIALIZED_NAME_TARGET_TYPE = "target_type";
    @SerializedName(SERIALIZED_NAME_TARGET_TYPE)
    private String targetType;
  
    public static final String SERIALIZED_NAME_TYPE = "type";
    @SerializedName(SERIALIZED_NAME_TYPE)
    private String type;
  
    public AntMerchantExpandItemOpenCreateModel() { 
    }
  
    public AntMerchantExpandItemOpenCreateModel description(String description) {
      
      this.description = description;
      return this;
    }
  
     /**
     * 商品描述
     * @return description
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "精选东北优质非转基因大豆", value = "商品描述")
  
    public String getDescription() {
      return description;
    }
  
  
    public void setDescription(String description) {
      this.description = description;
    }
  
  
    public AntMerchantExpandItemOpenCreateModel extInfo(List<ItemExtInfo> extInfo) {
      
      this.extInfo = extInfo;
      return this;
    }
  
    public AntMerchantExpandItemOpenCreateModel addExtInfoItem(ItemExtInfo extInfoItem) {
      if (this.extInfo == null) {
        this.extInfo = new ArrayList<>();
      }
      this.extInfo.add(extInfoItem);
      return this;
    }
  
     /**
     * 商品扩展信息（具体KEY请参见产品文档）。 小程序订单中心场景接入参见 &lt;a href&#x3D;\&quot;https://opendocs.alipay.com/mini/024hj4\&quot;&gt;接入指南&lt;/a&gt;。
     * @return extInfo
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "商品扩展信息（具体KEY请参见产品文档）。 小程序订单中心场景接入参见 <a href=\"https://opendocs.alipay.com/mini/024hj4\">接入指南</a>。")
  
    public List<ItemExtInfo> getExtInfo() {
      return extInfo;
    }
  
  
    public void setExtInfo(List<ItemExtInfo> extInfo) {
      this.extInfo = extInfo;
    }
  
  
    public AntMerchantExpandItemOpenCreateModel materialList(List<MaterialCreateInfo> materialList) {
      
      this.materialList = materialList;
      return this;
    }
  
    public AntMerchantExpandItemOpenCreateModel addMaterialListItem(MaterialCreateInfo materialListItem) {
      if (this.materialList == null) {
        this.materialList = new ArrayList<>();
      }
      this.materialList.add(materialListItem);
      return this;
    }
  
     /**
     * 素材列表（最多3个），素材内容为素材key（素材key为&lt;a href&#x3D;\&quot;https://opendocs.alipay.com/apis/api_4/alipay.merchant.item.file.upload\&quot;&gt;alipay.merchant.item.file.upload&lt;/a&gt; 接口返回的 material_key）
     * @return materialList
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "素材列表（最多3个），素材内容为素材key（素材key为<a href=\"https://opendocs.alipay.com/apis/api_4/alipay.merchant.item.file.upload\">alipay.merchant.item.file.upload</a> 接口返回的 material_key）")
  
    public List<MaterialCreateInfo> getMaterialList() {
      return materialList;
    }
  
  
    public void setMaterialList(List<MaterialCreateInfo> materialList) {
      this.materialList = materialList;
    }
  
  
    public AntMerchantExpandItemOpenCreateModel name(String name) {
      
      this.name = name;
      return this;
    }
  
     /**
     * 商品名称
     * @return name
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "西红柿炒蛋", value = "商品名称")
  
    public String getName() {
      return name;
    }
  
  
    public void setName(String name) {
      this.name = name;
    }
  
  
    public AntMerchantExpandItemOpenCreateModel propertyList(List<ItemPropertyInfo> propertyList) {
      
      this.propertyList = propertyList;
      return this;
    }
  
    public AntMerchantExpandItemOpenCreateModel addPropertyListItem(ItemPropertyInfo propertyListItem) {
      if (this.propertyList == null) {
        this.propertyList = new ArrayList<>();
      }
      this.propertyList.add(propertyListItem);
      return this;
    }
  
     /**
     * 商品属性列表
     * @return propertyList
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "商品属性列表")
  
    public List<ItemPropertyInfo> getPropertyList() {
      return propertyList;
    }
  
  
    public void setPropertyList(List<ItemPropertyInfo> propertyList) {
      this.propertyList = propertyList;
    }
  
  
    public AntMerchantExpandItemOpenCreateModel scene(String scene) {
      
      this.scene = scene;
      return this;
    }
  
     /**
     * 业务场景码。
     * @return scene
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "APP_ORDER", value = "业务场景码。")
  
    public String getScene() {
      return scene;
    }
  
  
    public void setScene(String scene) {
      this.scene = scene;
    }
  
  
    public AntMerchantExpandItemOpenCreateModel skuList(List<SkuCreateInfo> skuList) {
      
      this.skuList = skuList;
      return this;
    }
  
    public AntMerchantExpandItemOpenCreateModel addSkuListItem(SkuCreateInfo skuListItem) {
      if (this.skuList == null) {
        this.skuList = new ArrayList<>();
      }
      this.skuList.add(skuListItem);
      return this;
    }
  
     /**
     * 商品SKU列表（至少1个，最多20个）
     * @return skuList
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "商品SKU列表（至少1个，最多20个）")
  
    public List<SkuCreateInfo> getSkuList() {
      return skuList;
    }
  
  
    public void setSkuList(List<SkuCreateInfo> skuList) {
      this.skuList = skuList;
    }
  
  
    public AntMerchantExpandItemOpenCreateModel standardCategoryId(String standardCategoryId) {
      
      this.standardCategoryId = standardCategoryId;
      return this;
    }
  
     /**
     * 商品所属标准类目ID，标品及非标品都需传入。 请填入 &lt;a href&#x3D;\&quot;https://opendocs.alipay.com/mini/011lxt\&quot;&gt;小程序商品类目表&lt;/a&gt; 中三级类目ID。
     * @return standardCategoryId
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "2019073100992228000000100000", value = "商品所属标准类目ID，标品及非标品都需传入。 请填入 <a href=\"https://opendocs.alipay.com/mini/011lxt\">小程序商品类目表</a> 中三级类目ID。")
  
    public String getStandardCategoryId() {
      return standardCategoryId;
    }
  
  
    public void setStandardCategoryId(String standardCategoryId) {
      this.standardCategoryId = standardCategoryId;
    }
  
  
    public AntMerchantExpandItemOpenCreateModel targetId(String targetId) {
      
      this.targetId = targetId;
      return this;
    }
  
     /**
     * 商品归属主体ID 例：商品归属主体类型target_type为店铺，则商品归属主体ID为店铺ID（支付宝侧店铺ID）；归属主体类型target_type为小程序，则归属主体ID为小程序ID
     * @return targetId
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "2018090600502000000022501261", value = "商品归属主体ID 例：商品归属主体类型target_type为店铺，则商品归属主体ID为店铺ID（支付宝侧店铺ID）；归属主体类型target_type为小程序，则归属主体ID为小程序ID")
  
    public String getTargetId() {
      return targetId;
    }
  
  
    public void setTargetId(String targetId) {
      this.targetId = targetId;
    }
  
  
    public AntMerchantExpandItemOpenCreateModel targetType(String targetType) {
      
      this.targetType = targetType;
      return this;
    }
  
     /**
     * 商品归属主体类型。枚举如下： 5：店铺。 8：小程序。
     * @return targetType
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "8", value = "商品归属主体类型。枚举如下： 5：店铺。 8：小程序。")
  
    public String getTargetType() {
      return targetType;
    }
  
  
    public void setTargetType(String targetType) {
      this.targetType = targetType;
    }
  
  
    public AntMerchantExpandItemOpenCreateModel type(String type) {
      
      this.type = type;
      return this;
    }
  
     /**
     * 商品类型。枚举支持： STANDARD_GOODS：标品，一般是具有明确、标准规格、型号、参数的商品，如：手机、数码产品、大多数的家电 。 NON_STANDARD_GOODS：非标品，则是在这些方面没有统一的行业标准和参数规格的商品，如：服装、鞋袜等。
     * @return type
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "STANDARD_GOODS", value = "商品类型。枚举支持： STANDARD_GOODS：标品，一般是具有明确、标准规格、型号、参数的商品，如：手机、数码产品、大多数的家电 。 NON_STANDARD_GOODS：非标品，则是在这些方面没有统一的行业标准和参数规格的商品，如：服装、鞋袜等。")
  
    public String getType() {
      return type;
    }
  
  
    public void setType(String type) {
      this.type = type;
    }
  
    /**
     * A container for additional, undeclared properties.
     * This is a holder for any undeclared properties as specified with
     * the 'additionalProperties' keyword in the OAS document.
     */
    private Map<String, Object> additionalProperties;
  
    /**
     * Set the additional (undeclared) property with the specified name and value.
     * If the property does not already exist, create it otherwise replace it.
     *
     * @param key name of the property
     * @param value value of the property
     * @return the AntMerchantExpandItemOpenCreateModel instance itself
     */
    public AntMerchantExpandItemOpenCreateModel putAdditionalProperty(String key, Object value) {
      if (this.additionalProperties == null) {
          this.additionalProperties = new HashMap<String, Object>();
      }
      this.additionalProperties.put(key, value);
      return this;
    }
  
    /**
     * Return the additional (undeclared) property.
     *
     * @return a map of objects
     */
    public Map<String, Object> getAdditionalProperties() {
      return additionalProperties;
    }
  
    /**
     * Return the additional (undeclared) property with the specified name.
     *
     * @param key name of the property
     * @return an object
     */
    public Object getAdditionalProperty(String key) {
      if (this.additionalProperties == null) {
          return null;
      }
      return this.additionalProperties.get(key);
    }
  
  
    @Override
    public boolean equals(Object o) {
      if (this == o) {
        return true;
      }
      if (o == null || getClass() != o.getClass()) {
        return false;
      }
      AntMerchantExpandItemOpenCreateModel antMerchantExpandItemOpenCreateModel = (AntMerchantExpandItemOpenCreateModel) o;
      return Objects.equals(this.description, antMerchantExpandItemOpenCreateModel.description) &&
          Objects.equals(this.extInfo, antMerchantExpandItemOpenCreateModel.extInfo) &&
          Objects.equals(this.materialList, antMerchantExpandItemOpenCreateModel.materialList) &&
          Objects.equals(this.name, antMerchantExpandItemOpenCreateModel.name) &&
          Objects.equals(this.propertyList, antMerchantExpandItemOpenCreateModel.propertyList) &&
          Objects.equals(this.scene, antMerchantExpandItemOpenCreateModel.scene) &&
          Objects.equals(this.skuList, antMerchantExpandItemOpenCreateModel.skuList) &&
          Objects.equals(this.standardCategoryId, antMerchantExpandItemOpenCreateModel.standardCategoryId) &&
          Objects.equals(this.targetId, antMerchantExpandItemOpenCreateModel.targetId) &&
          Objects.equals(this.targetType, antMerchantExpandItemOpenCreateModel.targetType) &&
          Objects.equals(this.type, antMerchantExpandItemOpenCreateModel.type)&&
          Objects.equals(this.additionalProperties, antMerchantExpandItemOpenCreateModel.additionalProperties);
    }
  
    @Override
    public int hashCode() {
      return Objects.hash(description, extInfo, materialList, name, propertyList, scene, skuList, standardCategoryId, targetId, targetType, type, additionalProperties);
    }
  
    @Override
    public String toString() {
      StringBuilder sb = new StringBuilder();
      sb.append("class AntMerchantExpandItemOpenCreateModel {\n");
      sb.append("    description: ").append(toIndentedString(description)).append("\n");
      sb.append("    extInfo: ").append(toIndentedString(extInfo)).append("\n");
      sb.append("    materialList: ").append(toIndentedString(materialList)).append("\n");
      sb.append("    name: ").append(toIndentedString(name)).append("\n");
      sb.append("    propertyList: ").append(toIndentedString(propertyList)).append("\n");
      sb.append("    scene: ").append(toIndentedString(scene)).append("\n");
      sb.append("    skuList: ").append(toIndentedString(skuList)).append("\n");
      sb.append("    standardCategoryId: ").append(toIndentedString(standardCategoryId)).append("\n");
      sb.append("    targetId: ").append(toIndentedString(targetId)).append("\n");
      sb.append("    targetType: ").append(toIndentedString(targetType)).append("\n");
      sb.append("    type: ").append(toIndentedString(type)).append("\n");
      sb.append("    additionalProperties: ").append(toIndentedString(additionalProperties)).append("\n");
      sb.append("}");
      return sb.toString();
    }
  
    /**
     * Convert the given object to string with each line indented by 4 spaces
     * (except the first line).
     */
    private String toIndentedString(Object o) {
      if (o == null) {
        return "null";
      }
      return o.toString().replace("\n", "\n    ");
    }
  
  
    public static HashSet<String> openapiFields;
    public static HashSet<String> openapiRequiredFields;
  
    static {
      // a set of all properties/fields (JSON key names)
      openapiFields = new HashSet<String>();
      openapiFields.add("description");
      openapiFields.add("ext_info");
      openapiFields.add("material_list");
      openapiFields.add("name");
      openapiFields.add("property_list");
      openapiFields.add("scene");
      openapiFields.add("sku_list");
      openapiFields.add("standard_category_id");
      openapiFields.add("target_id");
      openapiFields.add("target_type");
      openapiFields.add("type");
  
      // a set of required properties/fields (JSON key names)
      openapiRequiredFields = new HashSet<String>();
    }
  
   /**
    * Validates the JSON Object and throws an exception if issues found
    *
    * @param jsonObj JSON Object
    * @throws IOException if the JSON Object is invalid with respect to AntMerchantExpandItemOpenCreateModel
    */
    public static void validateJsonObject(JsonObject jsonObj) throws IOException {
        if (jsonObj == null) {
          if (AntMerchantExpandItemOpenCreateModel.openapiRequiredFields.isEmpty()) {
            return;
          } else { // has required fields
            throw new IllegalArgumentException(String.format("The required field(s) %s in AntMerchantExpandItemOpenCreateModel is not found in the empty JSON string", AntMerchantExpandItemOpenCreateModel.openapiRequiredFields.toString()));
          }
        }
        if (jsonObj.get("description") != null && !jsonObj.get("description").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `description` to be a primitive type in the JSON string but got `%s`", jsonObj.get("description").toString()));
        }
        JsonArray jsonArrayextInfo = jsonObj.getAsJsonArray("ext_info");
        if (jsonArrayextInfo != null) {
          // ensure the json data is an array
          if (!jsonObj.get("ext_info").isJsonArray()) {
            throw new IllegalArgumentException(String.format("Expected the field `ext_info` to be an array in the JSON string but got `%s`", jsonObj.get("ext_info").toString()));
          }
  
          // validate the optional field `ext_info` (array)
          for (int i = 0; i < jsonArrayextInfo.size(); i++) {
            ItemExtInfo.validateJsonObject(jsonArrayextInfo.get(i).getAsJsonObject());
          };
        }
        JsonArray jsonArraymaterialList = jsonObj.getAsJsonArray("material_list");
        if (jsonArraymaterialList != null) {
          // ensure the json data is an array
          if (!jsonObj.get("material_list").isJsonArray()) {
            throw new IllegalArgumentException(String.format("Expected the field `material_list` to be an array in the JSON string but got `%s`", jsonObj.get("material_list").toString()));
          }
  
          // validate the optional field `material_list` (array)
          for (int i = 0; i < jsonArraymaterialList.size(); i++) {
            MaterialCreateInfo.validateJsonObject(jsonArraymaterialList.get(i).getAsJsonObject());
          };
        }
        if (jsonObj.get("name") != null && !jsonObj.get("name").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `name` to be a primitive type in the JSON string but got `%s`", jsonObj.get("name").toString()));
        }
        JsonArray jsonArraypropertyList = jsonObj.getAsJsonArray("property_list");
        if (jsonArraypropertyList != null) {
          // ensure the json data is an array
          if (!jsonObj.get("property_list").isJsonArray()) {
            throw new IllegalArgumentException(String.format("Expected the field `property_list` to be an array in the JSON string but got `%s`", jsonObj.get("property_list").toString()));
          }
  
          // validate the optional field `property_list` (array)
          for (int i = 0; i < jsonArraypropertyList.size(); i++) {
            ItemPropertyInfo.validateJsonObject(jsonArraypropertyList.get(i).getAsJsonObject());
          };
        }
        if (jsonObj.get("scene") != null && !jsonObj.get("scene").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `scene` to be a primitive type in the JSON string but got `%s`", jsonObj.get("scene").toString()));
        }
        JsonArray jsonArrayskuList = jsonObj.getAsJsonArray("sku_list");
        if (jsonArrayskuList != null) {
          // ensure the json data is an array
          if (!jsonObj.get("sku_list").isJsonArray()) {
            throw new IllegalArgumentException(String.format("Expected the field `sku_list` to be an array in the JSON string but got `%s`", jsonObj.get("sku_list").toString()));
          }
  
          // validate the optional field `sku_list` (array)
          for (int i = 0; i < jsonArrayskuList.size(); i++) {
            SkuCreateInfo.validateJsonObject(jsonArrayskuList.get(i).getAsJsonObject());
          };
        }
        if (jsonObj.get("standard_category_id") != null && !jsonObj.get("standard_category_id").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `standard_category_id` to be a primitive type in the JSON string but got `%s`", jsonObj.get("standard_category_id").toString()));
        }
        if (jsonObj.get("target_id") != null && !jsonObj.get("target_id").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `target_id` to be a primitive type in the JSON string but got `%s`", jsonObj.get("target_id").toString()));
        }
        if (jsonObj.get("target_type") != null && !jsonObj.get("target_type").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `target_type` to be a primitive type in the JSON string but got `%s`", jsonObj.get("target_type").toString()));
        }
        if (jsonObj.get("type") != null && !jsonObj.get("type").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `type` to be a primitive type in the JSON string but got `%s`", jsonObj.get("type").toString()));
        }
    }
  
    public static class CustomTypeAdapterFactory implements TypeAdapterFactory {
      @SuppressWarnings("unchecked")
      @Override
      public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
         if (!AntMerchantExpandItemOpenCreateModel.class.isAssignableFrom(type.getRawType())) {
           return null; // this class only serializes 'AntMerchantExpandItemOpenCreateModel' and its subtypes
         }
         final TypeAdapter<JsonElement> elementAdapter = gson.getAdapter(JsonElement.class);
         final TypeAdapter<AntMerchantExpandItemOpenCreateModel> thisAdapter
                          = gson.getDelegateAdapter(this, TypeToken.get(AntMerchantExpandItemOpenCreateModel.class));
  
         return (TypeAdapter<T>) new TypeAdapter<AntMerchantExpandItemOpenCreateModel>() {
             @Override
             public void write(JsonWriter out, AntMerchantExpandItemOpenCreateModel value) throws IOException {
               JsonObject obj = thisAdapter.toJsonTree(value).getAsJsonObject();
               obj.remove("additionalProperties");
               // serialize additonal properties
               if (value.getAdditionalProperties() != null) {
                 for (Map.Entry<String, Object> entry : value.getAdditionalProperties().entrySet()) {
                   if (entry.getValue() instanceof String)
                     obj.addProperty(entry.getKey(), (String) entry.getValue());
                   else if (entry.getValue() instanceof Number)
                     obj.addProperty(entry.getKey(), (Number) entry.getValue());
                   else if (entry.getValue() instanceof Boolean)
                     obj.addProperty(entry.getKey(), (Boolean) entry.getValue());
                   else if (entry.getValue() instanceof Character)
                     obj.addProperty(entry.getKey(), (Character) entry.getValue());
                   else {
                     obj.add(entry.getKey(), gson.toJsonTree(entry.getValue()).getAsJsonObject());
                   }
                 }
               }
               elementAdapter.write(out, obj);
             }
  
             @Override
             public AntMerchantExpandItemOpenCreateModel read(JsonReader in) throws IOException {
               JsonObject jsonObj = elementAdapter.read(in).getAsJsonObject();
               validateJsonObject(jsonObj);
               // store additional fields in the deserialized instance
               AntMerchantExpandItemOpenCreateModel instance = thisAdapter.fromJsonTree(jsonObj);
               for (Map.Entry<String, JsonElement> entry : jsonObj.entrySet()) {
                 if (!openapiFields.contains(entry.getKey())) {
                   if (entry.getValue().isJsonPrimitive()) { // primitive type
                     if (entry.getValue().getAsJsonPrimitive().isString())
                       instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsString());
                     else if (entry.getValue().getAsJsonPrimitive().isNumber())
                       instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsNumber());
                     else if (entry.getValue().getAsJsonPrimitive().isBoolean())
                       instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsBoolean());
                     else
                       throw new IllegalArgumentException(String.format("The field `%s` has unknown primitive type. Value: %s", entry.getKey(), entry.getValue().toString()));
                   } else { // non-primitive type
                     instance.putAdditionalProperty(entry.getKey(), gson.fromJson(entry.getValue(), HashMap.class));
                   }
                 }
               }
               return instance;
             }
  
         }.nullSafe();
      }
    }
  
   /**
    * Create an instance of AntMerchantExpandItemOpenCreateModel given an JSON string
    *
    * @param jsonString JSON string
    * @return An instance of AntMerchantExpandItemOpenCreateModel
    * @throws IOException if the JSON string is invalid with respect to AntMerchantExpandItemOpenCreateModel
    */
    public static AntMerchantExpandItemOpenCreateModel fromJson(String jsonString) throws IOException {
      return JSON.getGson().fromJson(jsonString, AntMerchantExpandItemOpenCreateModel.class);
    }
  
   /**
    * Convert an instance of AntMerchantExpandItemOpenCreateModel to an JSON string
    *
    * @return JSON string
    */
    public String toJson() {
      return JSON.getGson().toJson(this);
    }
  }
  
  